document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=412827>Question 412827</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The perimeter of a rectangle is 90 cm.  The length is 15 cm more than four times the width. What is the dimensions of the rectangle? </SPAN>\n" );
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document.write( "x = width<BR>\n" );
document.write( "4x + 15 = length\r<BR>\n" );
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document.write( "2x + 2(4x + 15) = 90 {perimeter equals (2 x width) plus (2 x length)}<BR>\n" );
document.write( "2x + 8x + 30 = 90 {used distributive property}<BR>\n" );
document.write( "10x + 30 = 90 {combined like terms}<BR>\n" );
document.write( "10x = 60 {subtracted 30 from both sides}<BR>\n" );
document.write( "x = 6 {divided both sides by 10}<BR>\n" );
document.write( "4x + 15 = 39 {substituted 6, in for x, into 4x + 15}\r<BR>\n" );
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document.write( "width = 6cm<BR>\n" );
document.write( "length = 39cm<BR>\n" );
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